Riaru onigokko (2008)

An odd death case that only targets persons whose last name is SATO is happening in Japan. Meanwhile, high school student SATO Tsubasa winds up in a parallel world during a fight with gangsters. Everything seems the same, but his friends, classmates are somehow different. Tsubasa cannot comprehend what is happening around him, but when he sees a girl getting killed in front of him by a persuer, he finds out that he is now in a world where the Lord of the land plays a fatal game of "tag". (AsianMediaWiki)